Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, gross, Total	$ 2,195	$ 2,223
Accumulated amortization	(1,209)	(1,181)
Intangible assets, net, Total	986	1,042
Customer relationships — commercial
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, gross	839	839
Accumulated amortization	(686)	(664)
Intangible assets, net	153	175
Proprietary technology
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, gross	478	481
Accumulated amortization	(477)	(473)
Intangible assets, net	1	8
Customer relationships — defense
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, gross	62	62
Accumulated amortization	(46)	(44)
Intangible assets, net	16	18
Trade name
Goodwill and Intangible Assets Disclosure [Line Items]
Indefinite lived intangible assets	791	791
In process research and development
Goodwill and Intangible Assets Disclosure [Line Items]
Indefinite lived intangible assets	$ 25	$ 50